Nokia M5122, T66250 User Manual
Nokia M5122
ADSL Bridgeā
T66250
USER MANUAL
Nokia M5122
ADSL Bridge
User Manual
C33874.21 B0
02.11.2000
1 Introduction to Nokia M5122
Nokia M5122 is an ADSL bridge which enables high-speed Internet
access and LAN interconnection. It increases the capacity of the
already installed telephone lines used traditionally for telephone
services. M5122 enables high-speed connections for homes and small
offices.
Figure 1 Nokia M5122
Nokia M5122 allows multiple PCs equipped with a 10Base-T Ethernet
interface to be connected to a remote network via a Digital Subscriber
Line Access Multiplexer (DSLAM) and an ATM access network. It
acts as a bridge between the Ethernet LAN and ADSL/ATM network
interfaces. An in-built 4-port hub allows easy home and small office
network installation.
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Nokia M5122 User Manual
2 Installing M5122
Before installing M5122, you may want to familiarise yourself with
the interfaces and indicator lights of M5122. From section 2.3, you
will find a step-by-step installation procedure, which shows the
physical installation of M5122.
2.1 Interfaces
M5122 has one ADSL line interface and four Ethernet interfaces
(10Base-T). It also has a Command Line Interface (CLI) for
management purposes. The ADSL line interface is compatible with
ITU-T G.992.1 specification.
Power switch
Mains connector
Command line interface (CLI)
Figure 2 M5122 back panel
2.2 Indicator lights
M5122 has eight indicator lights on the front panel: PWR, ST A, COL,
ETH-1, ETH-2, ETH-3, ETH-4, and DSL. ST A indicator is red. Other
indicators are green.
2
Ethernet ports
(ETH-1, ETH-2,
ETH-3, ETH-4)
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ADSL line (DSL)
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Figure 3 M5122 front panel indicators
DSL
GREEN
Off ADSL link is down.
Blinks ADSL connection is being established.
On ADSL link is up.
ETH-
GREEN
Off Ethernet is down.
On 10Base-T Ethernet is functional.
Blinks Receives traffic from Ethernet.
COL
GREEN
Blinks Collisions on the Ethernet. Note, that it is normal that some
collisions occur on the Ethernet.
STA
RED
Off OK
On Hardware malfunction during startup.
PWR
Off Power off.
On Power on.
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GREEN
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Nokia M5122 User Manual
2.3 Step-by-step installation procedures
In this section, we present two installation procedures: ADSL data
services and T elephone and ADSL data services. To use both telephone
and ADSL services, you will need a POTS splitter . This manual gives
installation example for a Nokia splitter T66270.
In these examples, we assume that you have installed your Ethernet
card properly and that your service provider has provided you with
instructions how to set your PC’s networking options.
ADSL data services
2.
1.
3.
4.
5.
Figure 4 M5122 with cables connected (ADSL services only)
1. Plug the mains power cord to a mains outlet. M5122 can be
connected to an earthed socket outlet only.
2. Switch on M5122. The PWR indicator lights up. After a while, the
red STA indicator blinks and then remains unlit. M5122 is now
functional.
3. Connect the Ethernet cable between your PC’s 10Base-T
connector and the Ethernet connector on the M5122 back panel
(ETH-1, ETH-2, ETH-3, or ETH-4).
4. Switch on your PC. The indicator corresponding the Ethernet port
you connected your PC to becomes green when your PC has
started. This indicator blinks when there is traffic in the
corresponding Ethernet port.
4
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5. Connect the ADSL line cable between the DSL connector on the
M5122 back panel and the wall socket. After a while, the DSL
indicator starts blinking. This indicates that the ADSL line is being
established. When the DSL indicator remains lit, the line is
functional.
6. During normal operation PWR and DSL indicators are lit and the
Ethernet indicators of the active Ethernet ports blink or remain lit
depending whether there is traffic or not. COL indicator may blink
occasionally during normal operation.
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Nokia M5122 User Manual
Telephone and ADSL data services with T66270 splitter
2.
4.
1.1.
3.
5.
6.
7.
Figure 5 M5122 with cables and splitter (T66270) connected
(Telephone and ADSL services)
1. Plug the mains power cord to a mains outlet. M5122 can be
connected to an earthed socket outlet only.
2. Switch on M5122. The PWR indicator lights up. After a while, the
red STA indicator blinks and then remains unlit. M5122 is now
functional.
3. Connect the Ethernet cable between your PC’s 10Base-T
connector and the Ethernet connector on the M5122 back panel
(ETH-1, ETH-2, ETH-3, or ETH-4).
4. Switch on your PC. The indicator corresponding the Ethernet port
you connected your PC to becomes green when your PC has
started. This indicator blinks when there is traffic in the
corresponding Ethernet port.
5. Connect the ADSL line cable between the DSL connector on the
M5122 back panel and the splitter’s MODEM connector.
6. Connect the splitter cable between the splitter’s LINE connector
and the wall socket. After a while, the DSL indicator starts
blinking. This indicates that the ADSL line is being established.
When the DSL indicator remains lit, the line is functional.
7. Connect the telephone to the splitter’s PHONE connector.
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8. During normal operation PWR and DSL indicators are lit and the
Ethernet indicators of the active Ethernet ports blink or remain lit
depending whether there is traffic or not. COL indicator may blink
occasionally during normal operation.
Now your M5122 has been connected and you can configure your PC’s
networking options and check that the service works according to your
service provider’s instructions.
2.4 Troubleshooting
This section gives some tips for troubleshooting.
Power (PWR) indicator is unlit.
Make sure that power cord has been connected to a mains outlet and
M5122 has been switched on.
Red status (STA) indicator is lit
Switch power off and then on again. If the STA indicator remains lit,
the unit may be faulty.
ADSL (DSL) indicator is unlit
Make sure that the ADSL line cable has been properly connected
between the DSL connector and the wall socket.
Ethernet (ETH-) indicator is unlit
Make sure that the Ethernet cable has been properly connected
between your PC’s Ethernet interface and the M5122 ETH connector .
Make sure that your PC is ON.
You cannot access the Internet
1. Make sure that your M5122 is ON.
2. Check that the DSL indicator is lit.
3. Check that Ethernet indicator (ETH-1, ETH-2, ETH-3, or ETH-4)
corresponding to the Ethernet interface you are connected to is
ON.
4. Make sure that your PC’s networking functions have been
configured according to your service provider’s instructions.
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Nokia M5122 User Manual
2.5 Installing M5122 on the wall
M5122 can also be wall mounted. Figure 6 shows the installation
procedure.
1. Drill two holes (6 mm in diameter) on the wall. The distance
between the holes must be 155 mm. Insert the plugs to the holes
and fix the screws.
2. Mount the modem on the wall as shown in Figure 6.
1.
2.
6 mm
155 mm
8
Figure 6 Wall installation
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